This is, unfortunately, an extremely common question.
In fact, it happens to me from time to time as well. Someone forwards me an email with humorous pictures (or better yet, pictures of Corgis), and some or all of them don’t display. It’s both frustrating and puzzling when it happens.
Email has evolved over the years, and as a result, things aren’t always as compatible as we’d like them to be.
I’ll review where the incompatibilities are most common, some of the ways pictures can get lost, and one or two workarounds that might help you view those all-important Corgi pictures that someone just sent you.